When there's no space left to put a tennis court on the ground, where's the next best spot? For Poland's inventive design firm <a href="http://www.plarchitekci.pl/en/pokaz/fala_park_sports_center__wolsztyn.html,1,87,1,0#9">PL.architekci</a>, the roof! Tasked with building a massive recreational center on a former brownfield site in beautiful Wolsztyn, the team plopped the tennis court on Fala Park&#039;s roof and wrapped it in an <a href="http://inhabitat.com/libyas-stunning-tripoli-congress-center-is-protected-by-a-tree-inspired-mesh-facade/">eight foot mesh cage</a> that prevents passersby on the ground from getting knocked out by stray balls.

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Fala Park by PL.architekci

The Fala Park recreation center was built on a former brownfield site in beautiful Wolsztyn, Poland

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Fala Park by PL.architekci

It boasts a double story climbing wall, four bowling alleys, two squash courts and a variety of other opportunities to get super fit

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Fala Park by PL.architekci

But the rooftop tennis court may well be its coolest attribute. Seriously... look at that view!

Fala Park by PL.architekci

When there's no space left to put a tennis court on the ground, where's the next best spot? For Poland's inventive design firm PL.architekci, the roof! Tasked with building a massive recreational center on a former brownfield site in beautiful Wolsztyn, the team plopped the tennis court on Fala Park's roof and wrapped it in an eight foot mesh cage that prevents passersby on the ground from getting knocked out by stray balls.